// Copyright (c) 2011 SameGoal LLC.
// All Rights Reserved.
// Author: Andy Hochhaus <ahochhaus@samegoal.com>

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef NET_HTTP_SERVER_COMET_PROXY_DETECT_MANAGER_H_
#define NET_HTTP_SERVER_COMET_PROXY_DETECT_MANAGER_H_

#include <map>
#include <memory>
#include <string>
#include <unordered_set>  // NOLINT

#include "net/http/server/comet/proxy_detect.h"

namespace sg {
namespace net {
namespace http {
namespace server {
namespace comet {

class ProxyDetectManager {
 public:
  typedef std::shared_ptr<ProxyDetect> ProxyDetectRefCntPtr;

  static ProxyDetectRefCntPtr New(es::Request *req);
  static void Remove(ProxyDetectRefCntPtr proxy_detect);
  static void Terminate();

  class ProxyDetectRefCntHash {
   public:
    int64 operator()(const ProxyDetectRefCntPtr &a) const {
      // TODO(ahochhaus): How to hash this better?
      return reinterpret_cast<int64>(a.get());
    }
  };

  typedef std::unordered_set<ProxyDetectRefCntPtr,
                             ProxyDetectRefCntHash> ProxyDetectSet;
  static ProxyDetectSet *proxy_detect_set_;
  static std::mutex *mutex_;
};

}  // namespace comet
}  // namespace server
}  // namespace http
}  // namespace net
}  // namespace sg

#endif  // NET_HTTP_SERVER_COMET_PROXY_DETECT_MANAGER_H_
